/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
  position: relative;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-size: var(--text-hero);
  font-family: var(--font-serif);
  margin-bottom: var(--space-md);
  max-width: 16ch;
  color: var(--color-text);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 48ch;
  line-height: 1.5;
}

.hero__scroll-cue {
  position: absolute;
  bottom: var(--space-xl);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.hero__scroll-cue::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: var(--color-text-muted);
  animation: gentle-grow 2s ease-in-out infinite;
}

@keyframes gentle-grow {
  0%, 100% { transform: scaleY(0.5); opacity: 0.3; }
  50%      { transform: scaleY(1); opacity: 0.8; }
}

/* ===== ZONE BADGES ===== */
.step__zone-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-xs) var(--space-sm);
  border-radius: 3px;
  margin-bottom: var(--space-sm);
}

.step__zone-badge--build {
  background: var(--color-badge-build-bg);
  color: var(--color-badge-build-fg);
}

.step__zone-badge--pipeline {
  background: var(--color-badge-pipeline-bg);
  color: var(--color-badge-pipeline-fg);
}

.step__zone-badge--run {
  background: var(--color-badge-run-bg);
  color: var(--color-badge-run-fg);
}

.step__zone-badge--product {
  background: var(--color-badge-product-bg);
  color: var(--color-badge-product-fg);
}

.step__zone-badge--ai {
  background: var(--color-badge-ai-bg);
  color: var(--color-badge-ai-fg);
}

/* ===== PACE LAYER TAGS ===== */
.step__pace-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: 3px;
  margin-left: var(--space-sm);
  vertical-align: middle;
}

.step__pace-tag--fashion {
  color: var(--color-pace-fashion);
  border: 1px solid rgba(249, 115, 22, 0.4);
  background: rgba(249, 115, 22, 0.12);
}

.step__pace-tag--commerce {
  color: var(--color-pace-commerce);
  border: 1px solid rgba(234, 179, 8, 0.4);
  background: rgba(234, 179, 8, 0.12);
}

.step__pace-tag--infrastructure {
  color: var(--color-pace-infrastructure);
  border: 1px solid rgba(34, 211, 238, 0.4);
  background: rgba(34, 211, 238, 0.12);
}

.step__pace-tag--governance {
  color: var(--color-pace-governance);
  border: 1px solid rgba(129, 140, 248, 0.4);
  background: rgba(129, 140, 248, 0.12);
}

.step__pace-tag--culture {
  color: var(--color-pace-culture);
  border: 1px solid rgba(251, 113, 133, 0.4);
  background: rgba(251, 113, 133, 0.12);
}

/* ===== PERSPECTIVE SIDEBAR STEPS ===== */
.step--perspective .step__content {
  background: var(--color-bg-alt);
  border-radius: 8px;
  border-left-width: 4px;
  border-left-style: solid;
  position: relative;
}

.step--perspective .step__content::before {
  content: 'Perspective';
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.step--perspective h2 {
  font-size: var(--text-lg);
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0;
}

.step--perspective h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--text-base);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

/* ===== GLOSSARY INLINE TERMS ===== */
.glossary-term {
  display: inline;
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-accent);
  border-bottom: 1px dashed var(--color-accent);
  cursor: help;
  position: relative;
  white-space: nowrap;
}

.glossary-term:hover,
.glossary-term:focus-visible {
  background: var(--color-accent-light);
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.glossary-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: max(220px, 28ch);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  line-height: 1.5;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(4px);
  transition: opacity var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  z-index: 50;
  text-align: left;
  white-space: normal;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.glossary-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-surface);
}

.glossary-term:hover .glossary-tooltip,
.glossary-term:focus-visible .glossary-tooltip {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* ===== VOCABULARY LIST (in synthesis steps) ===== */
.vocab-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.vocab-cloud__term {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-muted);
  transition: color var(--duration-fast), border-color var(--duration-fast);
}

.vocab-cloud__term.is-discovered {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ===== FOOTER ===== */
.site-footer {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  border-top: 1px solid var(--color-border);
}

.site-footer p {
  margin-bottom: var(--space-sm);
}